| Parameter |
Value |
| Designation |
P/2022 C3 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2022-07-01T06:38:07.016640Z |
| Orbit solution date (soln_date, UTC) |
2023-10-29T03:13:09Z |
| Obs used |
123 |
| NEO |
- |
| M1 |
7.100 |
| K1 |
15.250 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2022-02-09T14:55:00.796800Z |
| Discovery magnitude (MPC) |
20.92 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2022-04-23.0000000 |
| e |
0.54695784 |
| q (au) |
4.374506 |
| a (au) |
9.655848 |
| i (deg) |
12.815871 |
| Ω (om, deg) |
139.060787 |
| ω (w, deg) |
93.942616 |
| M (ma, deg) |
357.724357 |
Magnitude
Scatter + Global Linear
$$
M_a = (6.867 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
6.867 |
| n |
6.000 |
| gf |
0.999 |
| gb |
-0.864 |
| k |
0.999 |
| δ90 |
10.000 |
| Parameter |
Symbol |
Range |
Description |
| Absolute magnitude at 1 AU from Sun and Earth |
H0 |
-5 to 20 |
Intrinsic brightness of the comet |
| Photometric slope parameter |
n |
2 to 6 |
Rate of brightness change with heliocentric distance |
| Forward scattering asymmetry factor |
gf |
0.8 to 1 |
Degree of forward scattering |
| Backward scattering asymmetry factor |
gb |
-1 to -0.5 |
Degree of backward scattering |
| Partitioning coefficient |
k |
0.8 to 1 |
Ratio between forward/backward scattering contributions |
| Dust-to-gas brightness ratio |
δ90 |
1 to 10 |
Relative contribution of dust scattering to gas emission |
Reference: EPSC-DPS2025-160
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
23:24:07.55 |
-11:37:43.7 |
HIP 115657 |
37.57 |
| 2026-09-20 12:00 |
23:23:58.08 |
-11:38:51.4 |
HIP 115657 |
39.95 |
| 2026-09-21 00:00 |
23:23:48.64 |
-11:39:58.7 |
HIP 115657 |
42.35 |
| 2026-09-21 12:00 |
23:23:39.22 |
-11:41:05.6 |
HIP 115346 |
43.91 |
| 2026-09-22 00:00 |
23:23:29.82 |
-11:42:12.0 |
HIP 115346 |
41.66 |
| 2026-09-22 12:00 |
23:23:20.45 |
-11:43:17.9 |
HIP 115346 |
39.45 |
| 2026-09-23 00:00 |
23:23:11.11 |
-11:44:23.4 |
HIP 115346 |
37.29 |
| 2026-09-23 12:00 |
23:23:01.79 |
-11:45:28.5 |
HIP 115346 |
35.20 |
| 2026-09-24 00:00 |
23:22:52.50 |
-11:46:33.0 |
HIP 115346 |
33.17 |
| 2026-09-24 12:00 |
23:22:43.25 |
-11:47:37.2 |
HIP 115346 |
31.22 |
| 2026-09-25 00:00 |
23:22:34.02 |
-11:48:40.8 |
HIP 115346 |
29.37 |
| 2026-09-25 12:00 |
23:22:24.82 |
-11:49:43.9 |
HIP 115346 |
27.64 |
| 2026-09-26 00:00 |
23:22:15.66 |
-11:50:46.6 |
HIP 115346 |
26.03 |
| 2026-09-26 12:00 |
23:22:06.54 |
-11:51:48.7 |
HIP 115346 |
24.57 |
| 2026-09-27 00:00 |
23:21:57.45 |
-11:52:50.4 |
HIP 115346 |
23.30 |
| 2026-09-27 12:00 |
23:21:48.39 |
-11:53:51.6 |
HIP 115346 |
22.23 |
| 2026-09-28 00:00 |
23:21:39.38 |
-11:54:52.2 |
HIP 115346 |
21.39 |
| 2026-09-28 12:00 |
23:21:30.40 |
-11:55:52.3 |
HIP 115346 |
20.81 |
| 2026-09-29 00:00 |
23:21:21.46 |
-11:56:51.9 |
HIP 115346 |
20.50 |
| 2026-09-29 12:00 |
23:21:12.57 |
-11:57:51.0 |
HIP 115346 |
20.47 |
| 2026-09-30 00:00 |
23:21:03.71 |
-11:58:49.5 |
HIP 115346 |
20.73 |
| 2026-09-30 12:00 |
23:20:54.90 |
-11:59:47.5 |
HIP 115346 |
21.24 |
| 2026-10-01 00:00 |
23:20:46.14 |
-12:00:44.9 |
HIP 115346 |
22.00 |
| 2026-10-01 12:00 |
23:20:37.42 |
-12:01:41.8 |
HIP 115346 |
22.97 |
| 2026-10-02 00:00 |
23:20:28.75 |
-12:02:38.1 |
HIP 115119 |
22.49 |
| 2026-10-02 12:00 |
23:20:20.13 |
-12:03:33.8 |
HIP 115119 |
20.19 |
| 2026-10-03 00:00 |
23:20:11.55 |
-12:04:29.0 |
HIP 115119 |
17.91 |
| 2026-10-03 12:00 |
23:20:03.03 |
-12:05:23.6 |
HIP 115119 |
15.65 |
| 2026-10-04 00:00 |
23:19:54.55 |
-12:06:17.6 |
HIP 115119 |
13.40 |
| 2026-10-04 12:00 |
23:19:46.13 |
-12:07:11.1 |
HIP 115119 |
11.17 |
| 2026-10-05 00:00 |
23:19:37.77 |
-12:08:03.9 |
HIP 115119 |
8.97 |
| 2026-10-05 12:00 |
23:19:29.46 |
-12:08:56.1 |
HIP 115119 |
6.80 |
| 2026-10-06 00:00 |
23:19:21.20 |
-12:09:47.8 |
HIP 115119 |
4.68 |
| 2026-10-06 12:00 |
23:19:13.00 |
-12:10:38.8 |
HIP 115119 |
2.69 |
| 2026-10-07 00:00 |
23:19:04.87 |
-12:11:29.2 |
HIP 115119 |
1.43 |
| 2026-10-07 12:00 |
23:18:56.79 |
-12:12:19.0 |
HIP 115119 |
2.47 |
| 2026-10-08 00:00 |
23:18:48.77 |
-12:13:08.1 |
HIP 115119 |
4.38 |
| 2026-10-08 12:00 |
23:18:40.81 |
-12:13:56.6 |
HIP 115119 |
6.40 |
| 2026-10-09 00:00 |
23:18:32.91 |
-12:14:44.5 |
HIP 115119 |
8.45 |
| 2026-10-09 12:00 |
23:18:25.08 |
-12:15:31.7 |
HIP 115119 |
10.49 |
| 2026-10-10 00:00 |
23:18:17.32 |
-12:16:18.3 |
HIP 115119 |
12.53 |
| 2026-10-10 12:00 |
23:18:09.62 |
-12:17:04.2 |
HIP 115119 |
14.55 |
| 2026-10-11 00:00 |
23:18:01.98 |
-12:17:49.5 |
HIP 115119 |
16.55 |